@article{MZM_1990_48_6_a19,
     author = {L. Yu. Motylev},
     title = {Asymptotics near a~turning point for a~second-order nonlinear equation},
     journal = {Matemati\v{c}eskie zametki},
     pages = {145--146},
     publisher = {mathdoc},
     volume = {48},
     number = {6},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1990_48_6_a19/}
}